Re: fails to compile with undefined symbol (FP_PLUS_INF)

From: Seneca Cunningham <scunning(at)ca(dot)afilias(dot)info>
To: Riccardo Mottola <multix(at)gmail(dot)com>
Cc: pgsql-ports(at)postgresql(dot)org
Subject: Re: fails to compile with undefined symbol (FP_PLUS_INF)
Date: 2006-03-16 16:24:10
Message-ID: 4419912A.1070903@ca.afilias.info
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Riccardo Mottola wrote:
> our faithful grep tool says:
> bash-2.01$ grep FP_PLUS_INF *
> float.h:#define FP_PLUS_INF 4
> bash-2.01$ grep FP_MINUS_INF *
> float.h:#define FP_MINUS_INF 5

Is there a float.h in your gcc install directory? Is it #included
instead of /usr/include/float.h by gcc? My faithful grep tool says:

-bash-2.05b$ grep FP_MINUS_INF /usr/include/*
/usr/include/float.h:#define FP_MINUS_INF 5
/usr/include/math.h:#define FP_MINUS_INF 5

The float.h that's part of gcc doesn't contain the defines.

> On 3/16/06, Seneca Cunningham <scunning(at)ca(dot)afilias(dot)info> wrote:
>> Riccardo Mottola wrote:
>>> gcc -O2 -Wall -Wmissing-prototypes -Wpointer-arith -Winline
>>> -Wdeclaration-after-statement -Wendif-labels -fno-strict-aliasing
>>> -I../../src/port -DFRONTEND -I../../src/include -I/usr/local/include
>>> -c isinf.c -o isinf.o
>>> isinf.c: In function `isinf':
>>> isinf.c:69: error: `FP_PLUS_INF' undeclared (first use in this function)
>>> isinf.c:69: error: (Each undeclared identifier is reported only once
>>> isinf.c:69: error: for each function it appears in.)
>>> isinf.c:71: error: `FP_MINUS_INF' undeclared (first use in this function)
>>> make[2]: *** [isinf.o] Error 1
>> Are FP_PLUS_INF and FP_MINUS_INF defined in float.h or math.h? The
>> oldest docs that I found were for AIX 4.3 and what I could gather from
>> them is that the code should compile.

--
Seneca Cunningham
scunning(at)ca(dot)afilias(dot)info

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